Modern thinkers principally upon social science what they think and why This book, "Modern thinkers principally upon social science what they think and why", by Van Buren Denslow, is a replication of a book originally published before 1880. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.